The 2025 Mercedes-Benz AMG GLS 63 SUV stands as a testament to extraordinary performance blended seamlessly with opulent luxury and expansive space. This high-performance SUV elevates the driving experience with its handcrafted hybrid biturbo V8 engine, advanced AMG technology, and a suite of premium features designed for both driver and passengers. With a starting MSRP of $149,500, the AMG GLS 63 is an investment in unparalleled automotive excellence.
Under the hood lies the heart of this beast: a handcrafted AMG 4.0L V8 biturbo engine enhanced with hybrid assist. This powerhouse delivers a staggering 603 horsepower and 627 lb-ft of torque, propelling the GLS 63 from 0 to 60 mph in a mere 4.1 seconds. The engine’s responsiveness is further amplified by the AMG SPEEDSHIFT® TCT 9-speed automatic transmission, ensuring lightning-fast gear changes and optimal power delivery across the rev range.
Exterior Dimensions and Design
The exterior of the AMG GLS 63 commands attention with its powerful stance and refined AMG styling cues. Its dimensions reflect its spacious interior and imposing presence:
- Wheelbase (A): 123.4 inches
- Overall Length (B): 206.4 inches
- Overall Height (C): 70.2 inches
- Overall Width with Mirrors (D): 84.9 inches
- Overall Width without Mirrors (E): 79.9 inches
- Track Width, Front (F): 67.1 inches
- Track Width, Rear (G): 67.9 inches
These dimensions contribute to both the vehicle’s athletic appearance and its generous interior space, comfortably accommodating up to seven passengers (or six with optional configuration). The curb weight of 6,019 lbs underscores its robust construction and high-performance engineering.
Interior Space and Comfort
The 2025 AMG GLS 63 prioritizes passenger comfort and cargo versatility. It offers a luxurious cabin with ample headroom and legroom in all three rows:
- Passenger Capacity: 7 (6 optional)
- Headroom (1st Row): 39.4 inches
- Legroom (1st Row): 40.3 inches
- Shoulder Room (1st Row): 59.3 inches
- Headroom (2nd Row): 40.2 inches
- Legroom (2nd Row): 41.9 inches
- Shoulder Room (2nd Row): 58.5 inches
- Headroom (3rd Row): TBA
- Legroom (3rd Row): 34.6 inches
- Shoulder Room (3rd Row): TBA
- Cargo Capacity: 17.4-84.7 cu ft
The expansive cargo area, ranging from 17.4 cu ft with all seats in place to a cavernous 84.7 cu ft with the rear seats folded, ensures practicality for families and adventurers alike.
Engine, Performance, and Fuel Economy
The handcrafted AMG 4.0L V8 biturbo engine is the centerpiece of the GLS 63’s performance capabilities. Key engine specifications include:
- Engine: Handcrafted AMG 4.0L V8 biturbo with hybrid assist
- Power: 603 hp @ 5,750-6,500 rpm
- Torque: 627 lb-ft @ 2,500-4,500 rpm
- Compression Ratio: 8.6:1
- Construction: Diecast alloy block and heads
- Fuel Requirement: Premium unleaded gasoline
- Fuel Capacity: 23.8 gal
Despite its formidable power, the AMG GLS 63 also incorporates fuel-saving technologies. Its fuel economy is rated at:
- City Fuel Economy: 14 mpg
- Highway Fuel Economy: 18 mpg
- Emission Certification: Bin70/ULEV70
Transmission, Drivetrain, Suspension, and Wheels
The AMG GLS 63’s performance is further enhanced by its advanced drivetrain and chassis technologies:
- Automatic Transmission: AMG SPEEDSHIFT® TCT 9-speed
- Drive Configuration: AMG Performance 4MATIC+® all-wheel drive
- Suspension: 4-wheel independent double-wishbone front/multilink rear suspension based on AMG ACTIVE RIDE CONTROL
- Steering Type: Rack-and-pinion with electromechanical power assist
- Turning Circle: 43.0 ft
- Wheels: 21-inch AMG® 10-spoke (9.0×21 front and 11.5×21 rear)
- Tires: 275/50R21 front and 315/45R21 rear, high-performance
The AMG ACTIVE RIDE CONTROL suspension ensures exceptional handling and ride comfort, adapting to various driving conditions. AMG Performance 4MATIC+® all-wheel drive provides optimal traction and stability, allowing drivers to confidently harness the V8’s power.
Family Thrust Fund: Standard and Optional Features
Mercedes-Benz highlights the “FAMILY THRUST FUND” of the AMG GLS 63, emphasizing its blend of thrilling performance and family-friendly practicality. The vehicle comes generously equipped with standard features and offers a range of optional enhancements to personalize the driving experience. These optional features include packages like the Executive Rear Seat Package PLUS, which adds heated, ventilated, and massaging 2nd-row seats, wireless charging, and an MBUX tablet for rear passengers. The Warmth & Comfort Package further elevates passenger comfort with heated armrests throughout the cabin.
Prepaid Maintenance, Warranties, and Service
To ensure peace of mind and long-term vehicle health, Mercedes-Benz offers:
- Prepaid Maintenance: Lock in future maintenance costs and ensure servicing at certified dealerships.
- Mercedes-Benz Warranties: Comprehensive warranty options, including the New-Vehicle Limited Warranty and Certified Pre-Owned warranties.
- Service and Repair: Access to factory-trained technicians, advanced diagnostic tools, and Genuine Mercedes-Benz Parts at authorized dealerships.
The 2025 Mercedes-Benz AMG GLS 63 SUV is more than just a luxury SUV; it’s a performance powerhouse that delivers an unmatched driving experience for those who demand the best in power, luxury, and versatility.
